Radeon R9 M290X vs Radeon RX 570

Intro

Compare all that to the Radeon RX 570, which has a clock frequency of 1168 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 256-bit memory bus, and makes use of a 14 nm design. It features 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X		100 Watts
Radeon RX 570		150 Watts
	Difference: 50 Watts (50%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 570 should be 49% faster than the Radeon R9 M290X overall, because of its higher data rate. (explain)

Radeon RX 570		229376 MB/sec
Radeon R9 M290X		153600 MB/sec
	Difference: 75776 (49%)

Texel Rate

The Radeon RX 570 will be a lot (more or less 120%) faster with regards to AF than the Radeon R9 M290X. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon R9 M290X		68000 Mtexels/sec
	Difference: 81504 (120%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 570 is superior to the Radeon R9 M290X, by a large margin. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon R9 M290X		27200 Mpixels/sec
	Difference: 10176 (37%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.